7799491057 has 2 divisors, whose sum is σ = 7799491058. Its totient is φ = 7799491056.

The previous prime is 7799491001. The next prime is 7799491069. The reversal of 7799491057 is 7501949977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5518855521 + 2280635536 = 74289^2 + 47756^2 .

It is a cyclic number.

It is not a de Polignac number, because 7799491057 - 2⁷ = 7799490929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7799490992 and 7799491010.

It is not a weakly prime, because it can be changed into another prime (7799491757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3899745528 + 3899745529.

It is an arithmetic number, because the mean of its divisors is an integer number (3899745529).

Almost surely, 2^7799491057 is an apocalyptic number.

It is an amenable number.

7799491057 is a deficient number, since it is larger than the sum of its proper divisors (1).

7799491057 is an equidigital number, since it uses as much as digits as its factorization.

7799491057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5000940, while the sum is 58.

The square root of 7799491057 is about 88314.7272939231. The cubic root of 7799491057 is about 1983.1493478994.

The spelling of 7799491057 in words is "seven billion, seven hundred ninety-nine million, four hundred ninety-one thousand, fifty-seven".